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Doppler effect. The emitted signal toward the car is reflected back with a variation of frequency that depends on the speed away/toward the radar (160 km/h). This is only a component of the real speed (170 km/h). The Doppler effect (or Doppler shift), named after Austrian physicist Christian Doppler who proposed it in 1842, is the difference ...
WAVY airs thirty hours of local news a week. It operates its own weather radar, called "Super Doppler 10", at its studios.It was the first in the area to air a local morning broadcast at 5:30 a.m., beginning in 1992, and added weeknight newscasts at 5 p.m. in 1989 and 5:30 p.m. in 1994. [32]
A pulse-Doppler radar is a radar system that determines the range to a target using pulse-timing techniques, and uses the Doppler effect of the returned signal to determine the target object's velocity. It combines the features of pulse radars and continuous-wave radars, which were formerly separate due to the complexity of the electronics.
WRAL-TV was the first in the U.S. to broadcast a live sports program in high definition (on September 6, 1997), as well as the first HD newscast (on October 13, 2000). [49] CBS utilized WRAL-HD in testing its own high-definition programming, and in 1999, began providing the station with a regular schedule of prime time programs in HD.
NEXRAD or Nexrad (Next-Generation Radar) is a network of 159 high-resolution S-band Doppler weather radars operated by the National Weather Service (NWS), an agency of the National Oceanic and Atmospheric Administration (NOAA) within the United States Department of Commerce, the Federal Aviation Administration (FAA) within the Department of Transportation, and the U.S. Air Force within the ...
Description. ARMOR is a modified WSR-74 C-Band (5625 MHz) radar with a 0.5 - 1.0° resolution in azimuth and a spatial resolution varying from 60 to 500 meters, with a typical resolution of 150m. ARMOR sits 206 meters above sea level. The pulse length can vary from 0.4 to 4 microseconds and its peak power is 350 kW.